Answers...

to commonly asked questions.

MacOS

Can I go from Snow Leopard to El Capitan?

Can I go from 10.6.8 to 10.11?
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Yes. Apple allows a jump that large but you can't jump from 10.6 to 10.12 or higher. Also, 10. does have to be completely up to date first as well. (10.6.8) However, if you've not previously downloaded 10.11 from the App Store, Apple doesn't make older operating systems available. Still possible. You just have to obtain a copy of the prior operating system.
https://support.apple.com/kb/sp728?locale=en_US

Can't delete a user in High Sierra

Scotty,

I migrated an old user after I accidentally created a new user with the same name when I bought a new mac. Now I can't delete the other user. It's greyed out in the Users & Groups.
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I've seen this issue now several times. A couple of ways to solve this. Wipe the drive and start the migration over again or swap the GeneratedUID. This is not something for you to do if you are not 100% confident in your abilities. Make a backup and proceed with extreme caution:

  1. Go to Directory Utility
  2. Enable Root
  3. In Directory Editor, search for the user to be deleted.
  4. Copy the UID to a textedit doc then change the UID by one number
  5. Save
  6. Search for the currently logged in user (the user to be kept)
  7. copy the UID for this user into the text doc just to be safe.
  8. now replace it with the first UID number.
  9. Open terminal and run `diskutil apfs updatePreboot disk1a1`
  10. Restart and log in as the remaining user. Pray.

Original credit goes to Ambrose Little over at medium.com

Where's my powermanagement plist file?

Scotty,

Where did my powermanagement plist go? It's no longer in the system configuration folder.
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Correct. Ever since Sierra and later it looks like Apple has moved some plist files around. You can now find the power management.plist file just outside of the system configuration folder. in Library/Preferences. In addition, the boot.plist and CaptivenetworkSupport folder are also no longer disposable. They are protected by the OS. I don't think even Root can toss them. Here's a great article listing all the current locations of important plist files. Another great article here on what happens (and doesn't happen) when plist files are modified.

Where did my share menu items go?

Scotty after updating my computer, some options are missing from my share menu like twitter or mail. How can I get them back?
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Open terminal.

Copy and paste the following command:

/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -seed

Hit return. It may take a few minutes but eventually the command should finish.

Restart your computer (optional) then go to system preferences/Extentions. Enable whatever you feel you need.
This image is a theme.plist hack